internal static void HandleClient(NetStream stream, IPEndPoint ip)
{
try {
var ssl = new SslStream(stream);
ssl.AuthenticateAsServer(Certificate);
stream = ssl;
} catch (Exception e) {
stream.Write("ERR_SSL\r\n");
stream.Write(e.ToString());
return;
}
stream.Encoding = Encoding.ASCII;
var encdodingstring = stream.Read();
int codepage;
if (int.TryParse(encdodingstring, out codepage)) {
try {
var cpenc = Encoding.GetEncoding(codepage);
stream.Encoding = cpenc;
stream.Write("success");
} catch {
stream.Write("ERR_ENCODING_NOT_FOUND");
stream.Close();
return;
}
} else {
try {
var encoding = Encoding.GetEncoding(encdodingstring);
stream.Encoding = encoding;
stream.Write("success");
} catch {
stream.Write("ERR_ENCODING_NOT_FOUND");
stream.Close();
return;
}
}
try {
var cred = Authenticate(stream);
if (!cred.Successful) {
stream.Close();
return;
}
stream.Write("LOGIN_SUCCESS");
ClientLoop.BeginClient(new Client(stream, cred.Username, cred.SecurityLevel, ip));
} catch (Exception ex) {
stream.Write("ERR\r\n");
stream.Write(ex.ToString());
}
}
private static NewClientCredentials ConfigAuth(NetStream stream)
{
var ncc = new NewClientCredentials { Successful = false, SecurityLevel = -1, Username = null };
var userpass = stream.Read();
var ups = userpass.Split(new[] { ':' }, 2);
if (ups.Length < 2) {
stream.Write("ERR_AUTH_INVALID_USER_FORMAT");
stream.Close();
return ncc;
}
if (Userconf["user." + ups[0] + ".enabled"] != "true") {
stream.Write("ERR_AUTH_INVALID_CREDENTIALS");
return ncc;
}
var validhash = Userconf["user." + ups[0] + ".hash"];
var thishash = Hash(ups[1]);
if (validhash != thishash) {
stream.Write("ERR_AUTH_INVALID_CREDENTIALS");
return ncc;
}
var seclvlstr = Userconf["user." + ups[0] + ".sec"];
int sec;
if (!int.TryParse(seclvlstr, out sec)) {
stream.Write("ERR_ACCOUNT_NOT_AUTHORIZED");
return ncc;
}
ncc.Username = ups[0];
ncc.SecurityLevel = sec;
ncc.Successful = true;
Thread.CurrentThread.Name = ncc.Username;
return ncc;
}
